Borro servidor de máquinas virtuales dummy y corrijo los issues #55, #56, #57, #58 y #59

 On branch issue_29_30
 Changes to be committed:

	deleted:    testing/dummyVMServer.py
	modified:   testing/virtualMachineServerTester.py
	modified:   virtualMachineServer/libvirtConnector.py
	modified:   virtualMachineServer/packets.py
	modified:   virtualMachineServer/vmServer.py